JPH0720101Y2 - Conveyor positioning device for round work - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a transfer positioning device for transferring a round work such as various shafts, which is a transferred object.

[Conventional technology]

Conventionally, when a round workpiece such as a stepped shaft is transported by a pitch conveyor, it is transported while supporting the round workpiece by a workpiece support member, and when stop positioning is required,
The precision of the individual work supporting members is increased to forcibly position the chain connected to the work supporting members to adjust the stop positioning.

[Problems to be solved by the invention]

However, in the above-mentioned conventional technique, it is impossible to prevent the deviation between the chains, the processing error of each work supporting member, and the attachment error, and thus it is difficult to obtain an accurate work stopping accuracy.

The present invention has been proposed in view of the above circumstances, and can be adapted regardless of the outer diameter of a workpiece to be transported,
Furthermore, it is possible to accurately stop and position at the required stop positioning point regardless of the deviation between chains and the processing error and mounting error of each work support member, and the conveyance of round workpieces that helps improve work efficiency. An object is to provide a positioning device.

[Means for solving problems]

In order to solve the above problems, the present invention provides a pitch conveyor that intermittently conveys a shaft portion of a round workpiece which is separated by a predetermined amount in the work axis direction while being supported by a pair of work supporting members. It is provided at a predetermined positioning stop position at a position separated from the pair of work supporting members by a predetermined amount in the work axis direction, and a positioning groove is formed in the center along the carrying direction, and both ends are A pair of positioning members, each of which has an inclined surface whose inclination increases toward the positioning groove, and whose upper support position is changed by pivoting with respect to the base of the pitch conveyor in a direction orthogonal to the carrying direction and the work axis direction. A scale member that is provided in the vicinity of the pair of positioning members, and that displays an upper support position of each of the pair of positioning members; Positioning member adjusting device, which is provided by rotatably engaging a pair of positioning members and adjusts the upper support position of the positioning members to predetermined positions according to the display value of the scale member, and the pair of positioning members. A lock member that is provided in the vicinity of the member and that fixes the positioning member adjustment device that has completed position adjustment to the base body, and when positioning the round work at a predetermined positioning stop position in the transport direction, The pair of positioning members are adjusted to respective predetermined positions in accordance with the diameter, and the pair of work supporting members are placed and positioned in the positioning grooves of the pair of positioning members by the intermittent transfer. It is what

[Action]

In order to correspond to the size of the workpiece outer diameter in advance, the positioning member arranged at the position that requires stop positioning is adjusted in the vertical direction by the positioning member adjusting device according to the display value of the scale member. The round work supported by the work supporting member is intermittently transferred to the positioning member by the pitch conveyor, and transferred to the inclined surface of the positioning member. After that, the round work is transferred from the work supporting member to the positioning groove at the center of the positioning member, and the positioning is accurately performed.

〔Example〕

Hereinafter, an embodiment of the present invention will be described in more detail with reference to the drawings.

FIG. 1 shows a front sectional view of a pitch conveyor, which is a main body incorporating a transfer positioning device for a round work, and FIG. 2 shows a partial side sectional view of a transfer positioning device for a round work. FIG. 3 is a cross-sectional view taken along the line I-I in FIG. 2, and FIG. 4 is an explanatory view showing the movement locus of the transported object and the basic principle of delivery.

First, the relationship between the pitch conveyor and the conveying / positioning device for the round work will be described with reference to FIG. The pitch conveyor 1 has a frame body 2 extended, sprockets (not shown) provided at both ends of the frame body 2, and a chain 3 is endlessly stretched between the sprockets. The chain 3 includes a movable rest, which is a work support member that evenly supports near the center of a round workpiece (hereinafter, referred to as a workpiece W) such as a shaft, which is the transported object, at regular intervals in the flow direction of the transported object. 4,5 are attached with the attachment 6 etc. And the moving rest 4,
5 is intermittently transferred by a driving device (not shown) incorporating a mechanism for intermittent movement provided at one end of the frame 2.

The round workpiece transfer positioning devices 7 and 8 are mounted on a support base 9 which is horizontally extended in the width direction of the frame body at a position where the stop accuracy of the workpiece W in the flow direction of the workpiece W is required. At this time, the fixed rests 10 and 11 which are the positioning members of the transfer positioning devices 7 and 8 for the round workpieces are provided at positions supporting both ends of the workpiece W.

Next, the basic principle of transferring the work W between the movable rest and the fixed rest will be described with reference to FIG.

The movable rests 4 and 5, which are work supporting members supporting the work in the V grooves 4a and 5a, are intermittently transferred by the movement of the pitch conveyor 1. On the other hand, fixed rests 10 and 11 are provided at a position S where the work W needs to be stopped accurately. The work W transferred onto the inclined surfaces 10a, 11a of the fixed rests 10, 11 has the inclined surfaces 10a, 11a.
It is rolled and transferred along a and 11a and placed in the positioning groove 12 of the fixed rests 10 and 11. The work W rolls along the inclined surfaces of the fixed rests 10 and 11, and is transferred to the V of the movable rests 4 and 5 at the stage of transferring
While gradually floating in the grooves 4a, 5a, they are pushed by the moving rests 4, 5 and enter the positioning grooves 12 of the fixed rests 10, 11. At this point, the round work W is completely transferred from the V grooves 4a, 5a of the movable rests 4, 5 to the positioning groove 12 of the fixed rests 10, 11. The work W, which has been placed in the positioning groove 12 of the fixed rests 10 and 11 and completed the work such as measurement, is
The movement of 5 re-engages the V grooves 4a, 5a of the movable rests 4, 5 and rolls on the inclined surfaces 10a, 11a of the fixed rests 10, 11 while being transferred to the V grooves 4a, 5a of the movable rests 4, 5. To be done.

Now, a conveyance / positioning device for a round workpiece will be described with reference to FIGS. 2 and 3.

As shown in the figure, the transfer positioning devices 7 and 8
3, drive shaft 14, fixed rest 10, pinion 15 and rack 16,
It is composed of a rotating shaft 17 and the like. Then, they are placed on the left and right sides of the pitch conveyor 1 by mistake. FIG. 2 and FIG. 3 show only one side of different hand.

The box body 13 is mounted on the support base 9 of the pitch conveyor 1 so that the drive shaft 14 is orthogonal to the work flow direction. Inside the box body 13, a drum-shaped fixed rest 10 in which inclined surfaces 10a are formed from both ends toward the center in the same direction as the work flow direction and a positioning groove 12 is formed in the central portion.
However, it is rotatably supported by rotating shafts 17 provided on both sides of the box body 13 so as to penetrate the fixed rests via bearings (not shown). The rotation center line P of this rotating shaft 17 and the fixed rest
The center line P'of 10 is deviated from the center line P'by a dimension l. Therefore, when the fixed rest 10 is appropriately rotated, the height of the rotary shaft 17 from the rotation center line P gradually changes to the position as shown by the chain double-dashed line in FIG. 2 (the maximum raised position of the fixed rest 10). become. Therefore, the height of the fixed rest 10 can be adjusted according to the outer diameter of the conveyed work W.

A pinion 15 for rotating the fixed rest 10 is externally fitted to one end of the rotary shaft 17, and a rack 16 is meshed with the pinion 15 at right angles to the rotary shaft 17. The rack 16 has a drive shaft 14
The drive shaft 14 is engraved on a part of the tip of the drive shaft 14, and the drive shaft 14 is fitted in pushes 18 and 19 screwed to the side surface of the box body 13, and these constitute a positioning member adjusting device 25. On the surface of the drive shaft 14 opposite to the rack 16, the fixed rest 10 is rotated by moving the drive shaft 14 back and forth, and a scale indicating the height from the rotary shaft center line P of the fixed rest 10 by numbers is described. There is.

A knob 20 is attached to the front side of the drive shaft 14 so that the drive shaft 14 can easily be manually moved back and forth in the arrow X direction. A groove 14a is formed in a part of the drive shaft 14 in parallel with the drive shaft axis as a guide for moving the drive shaft 14 back and forth in the X direction. In order to fix the drive shaft 14 in the groove 14a when the drive shaft 14 is moved by a certain amount, the push 18 on the knob 20 side is fixed.
The tip of the threaded portion 22 of the lock member 21 screwed into is fitted. The lock member 21 includes a screw portion 22 and a handle 23 connected to the screw portion, and the drive shaft 14 is locked / unlocked by tightening or loosening the handle 23.

Further, a pointer 24 for indicating the scale on the surface of the drive shaft 14 is attached to the side surface of the push 18 on the knob 20 side. The pointer 24 and the scale of the drive shaft 14 constitute a scale member.

The above-described round work transfer positioning devices 7 and 8 are provided with the lock member 2
The box body 13 is attached so that the 1 and the knob 20 are located outside the frame body 2 of the pitch conveyor 1.

The operation of the conveying / positioning device for a round work having the above-described structure will be described.

A circular workpiece W having a different diameter as shown in FIG. 1 is intermittently transferred by the drive device of the pitch conveyor 1 while being supported by the moving rests 4 and 5.

On the other hand, the transfer positioning devices 7 and 8 for the round work W, which are provided at specific positions in the work length direction of the pitch conveyor 1, are set in advance. That is, the handle 23 of the lock member 21 is loosened, the knob 20 is gripped, the drive shaft 14 is moved back and forth, and the round work W can be transferred onto the fixed rest inclined surfaces 11a, 11a according to the outer diameter of the work. The fixed rests 10 and 11 are rotated by the rack 16 and the pinion 15. When the fixed rests 10 and 11 rotate until they reach a certain height, the drive shaft 14 is fixed by the lock member 21.

The round work W that has been intermittently transferred is transferred to the fixed rest inclined surfaces 10a and 11a of the transfer positioning devices 7 and 8 of the round work W, and gradually moves in the V grooves 4a and 5a of the moving rests 4 and 5. Positioned groove of fixed rests 10 and 11 pushed by moving rests 4 and 5 while floating
Go into 12. At this point, the V-grooves 4a and 5a of the moving rests 4 and 5
Therefore, the round workpiece W is completely transferred from the V grooves 4a, 5a of the movable rests 4, 5 to the positioning groove 12 of the fixed rests 10, 11 and is accurately positioned.

Therefore, after performing work such as measuring the outer diameter of the work, the work W rolls from the fixed rest positioning groove 12 to the inclined surface while engaging with the groove of the moving rest by the movement of the moving rest again, and moves to the moving rest V groove. Transfer and repeat intermittent movement.

As described above, according to the present embodiment, the height can be adjusted by moving the drive shaft back and forth and rotating the fixed rest by the pinion and the rack, so that it can be applied to various round work transfer. It has become possible to provide a conveyance and positioning device for a round work.

[Effect of device]

According to the present invention, the positioning member can be easily adjusted in the vertical direction by the scale member and the positioning member adjusting device, and the present device can be applied regardless of the outer diameter of the round work to be conveyed. Further, since this device is arranged at a position for stopping and positioning independently of the work supporting member, it is possible to accurately perform regardless of problems such as misalignment between chains and machining errors and mounting errors of individual work supporting members. Can be stopped and positioned.

As a result, it has become possible to provide a conveying / positioning device for a round work having high work efficiency.

[Brief description of drawings]

FIG. 1 shows a front sectional view of a pitch conveyor, which is a main body incorporating a transfer positioning device for a round work, and FIG. 2 shows a partial side sectional view of a transfer positioning device for a round work. FIG. 3 shows a cross-sectional view taken along the line I-I in FIG. 2, and FIG. 4 shows an explanatory view showing the movement locus of the transported object and the basic principle of delivery. 1 ... Pitch conveyor, 2 ... Frame 3 ... Chain 4,5 ... Moving rest (work support member) 7,8 ... Transporting and positioning device for round work 10,11 ... Fixed rest (positioning member) 12 ... Positioning groove, 14 ... Drive shaft 15 ... Pinion, 16 ... Rack 21 ... Lock member 25 ... Positioning member adjusting device.

Claims (1)

[Scope of utility model registration request] 1. A pitch conveyor that intermittently conveys a shaft portion of a round workpiece which is separated by a predetermined amount in the workpiece axis direction while being supported by a pair of workpiece supporting members, wherein a predetermined positioning stop position of a base body of the pitch conveyor is provided. It is provided at a position apart from the pair of work supporting members in the work axial direction by a predetermined amount, and a positioning groove is formed in the central portion along the carrying direction, and an inclination from both ends toward the positioning groove. A pair of positioning members, each of which has an increasing inclined surface, and whose upper support position is changed by rotation with respect to the base of the pitch conveyor in a direction orthogonal to the carrying direction and the work axis direction; A scale member that is provided in the vicinity of each of the pair of positioning members and displays the upper supporting positions of the pair of positioning members; A positioning member adjusting device that is provided so as to be engageable with each other and that adjusts the upper support position of the positioning member to a predetermined position according to the display value of the scale member, and is provided in the vicinity of the pair of positioning members, The positioning member adjusting device, which has completed position adjustment, comprises a lock member for fixing the positioning member adjusting device to the base body, and when the round work is positioned at a predetermined positioning stop position in the transport direction, the pair of pairs corresponds to the diameter of the work. Each of the positioning members is adjusted to a predetermined position, and by the intermittent transfer, the pair of work supporting members are placed and positioned in the positioning grooves of the pair of positioning members to perform positioning. Positioning device.